21890546

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{1283}}^1$

素因数の和:1753

約数の個数: 16

約数和(自身を含む): 34668000

約数和(自身を除く): 12777454

約数列:

[1, 2, 19, 38, 449, 898, 1283, 2566, 8531, 17062, 24377, 48754, 576067, 1152134, 10945273, 21890546]

約数ペア:

[(1, 21890546), (2, 10945273), (19, 1152134), (38, 576067), (449, 48754), (898, 24377), (1283, 17062), (2566, 8531)]